Home / 278,868,336.30-418,302,504.45-248,257,334.70

Finding the Fourth Proportional to 278,868,336.30, 418,302,504.45 and 248,257,334.70

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Solution

The fourth proportional to 278,868,336.30, 418,302,504.45 and 248,257,334.70 is: 372,386,002.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,868,336.30 : 418,302,504.45 = 248,257,334.70 : x
  2. Step 2: Convert to fraction form
    278,868,336.30/418,302,504.45 = 248,257,334.70/x
  3. Step 3: Cross multiply
    278,868,336.30x = 418,302,504.45 × 248,257,334.70
  4. Step 4: Simplify right side
    278,868,336.30x = 103,846,664,853,091,888
  5. Step 5: Solve for x
    x = 103,846,664,853,091,888/278,868,336.30
  6. Step 6: Final answer
    x = 372,386,002.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.